/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8                               :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 Justine Alexandra Roberts Tunney                              │
│                                                                              │
│ Permission to use, copy, modify, and/or distribute this software for         │
│ any purpose with or without fee is hereby granted, provided that the         │
│ above copyright notice and this permission notice appear in all copies.      │
│                                                                              │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
│ PERFORMANCE OF THIS SOFTWARE.                                                │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "tool/plinko/lib/cons.h"
#include "tool/plinko/lib/index.h"
#include "tool/plinko/lib/plinko.h"

void PlanFuncalls(int n, dword p, int x) {
  int h;
  if (x < 0 && (h = Car(x)) != kQuote && h != kClosure && h != kMacro) {
    if (h == kLambda) {
      if (!HasAtom(n, Cadr(x))) {
        PlanFuncalls(n, p, Caddr(x));
      }
    } else if (h == kCond) {
      while ((x = Cdr(x)) < 0) {
        if ((h = Car(x)) < 0) {
          PlanFuncalls(n, p, Car(h));
          if ((h = Cdr(h)) < 0) {
            PlanFuncalls(n, p, Car(h));
          }
        }
      }
    } else {
      if (h == n) {
        SetShadow(x, p);
      }
      while (x) {
        if (x < 0) {
          h = Car(x);
          x = Cdr(x);
        } else {
          h = x;
          x = 0;
        }
        PlanFuncalls(n, p, h);
      }
    }
  }
}
